From 03e8715acbf1cff26feeef216e77db3c1fdd679f Mon Sep 17 00:00:00 2001
From: Tom Wieczorek <twieczorek@mirantis.com>
Date: Thu, 27 Jun 2024 17:38:10 +0200
Subject: [PATCH] Only require gold linker on ARM

This is an upstream requirement of Go. Since gold is not available on
every architecture, let's just use it where it's required.

Signed-off-by: Tom Wieczorek <twieczorek@mirantis.com>
---
 build/Dockerfile | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/build/Dockerfile b/build/Dockerfile
index 158887c48fe8..5a39abe9e8d2 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,6 +1,15 @@
 ARG BUILDIMAGE
 FROM $BUILDIMAGE
-RUN apk add --no-cache make gcc musl-dev binutils-gold
+
+ARG TARGETARCH
+RUN set -ex; \
+# Need to use the gold linker on ARM, Go really wants to have it.
+# https://github.com/golang/go/blob/go1.22.4/src/cmd/link/internal/ld/lib.go#L1622-L1641
+  case "$TARGETARCH" in \
+  arm*) binutils=binutils-gold ;; \
+    *)    binutils=binutils ;; \
+  esac; \
+  apk add --no-cache make gcc musl-dev "$binutils"
 
 ENV \
   HOME="/run/k0s-build" \